T-Mobile's CEO John Legere is taking his "bad boy" image and feud with AT&T to the next level: he crashed a party thrown by AT&T at the International CES gadget show in Las Vegas, and was thrown out after being discovered.

T-Mobile said today that it's reached deals to buy spectrum licenses from Verizon Wireless for $2.37 billion in cash, allowing it to improve certain kinds of cellular service in markets across the U.S.

The iPhone and new pricing plans helped T-Mobile gain customers under contract plans for the first time in at least two and a half years, a major boost for a wireless carrier often dismissed as an afterthought in a market dominated by AT&T and Verizon.

Verizon Wireless, the country's largest cellphone carrier, on Thursday said it's joining AT&T and T-Mobile in providing installment plans for its phones, aiming to satisfy customers who want to upgrade their phones faster or avoid paying the upfront cost of their phones.

The country's four biggest cellphone companies are set to launch their first joint advertising campaign against texting while driving, uniting behind AT&T's "It Can Wait" slogan to blanket TV and radio this summer.